FR971748A - Improvements to the grinding and polishing processes of corners, especially corners used in optics - Google Patents

Improvements to the grinding and polishing processes of corners, especially corners used in optics

Info

Publication number
FR971748A
FR971748A FR971748DA FR971748A FR 971748 A FR971748 A FR 971748A FR 971748D A FR971748D A FR 971748DA FR 971748 A FR971748 A FR 971748A
Authority
FR
France
Prior art keywords
corners
optics
grinding
polishing processes
polishing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR971748A publication Critical patent/FR971748A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/0018—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for plane optical surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR971748D 1943-08-03 1948-02-27 Improvements to the grinding and polishing processes of corners, especially corners used in optics Expired FR971748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US971748XA 1943-08-03 1943-08-03

Publications (1)

Publication Number Publication Date
FR971748A true FR971748A (en) 1951-01-22

Family

ID=22261768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR971748D Expired FR971748A (en) 1943-08-03 1948-02-27 Improvements to the grinding and polishing processes of corners, especially corners used in optics

Country Status (1)

Country Link
FR (1) FR971748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950302A (en) * 1987-08-17 1990-08-21 Wella Aktiengesellschaft Process for the production of 2,5-diamino-6-nitro-pyridine derivatives, their use in hair dye compositions and new 2,5-diamino-6-nitropyridine derivatives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950302A (en) * 1987-08-17 1990-08-21 Wella Aktiengesellschaft Process for the production of 2,5-diamino-6-nitro-pyridine derivatives, their use in hair dye compositions and new 2,5-diamino-6-nitropyridine derivatives

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